Abstracts tagged "Myopathies"

Abstract Number: LB14 • ACR Convergence 2025
Promising Early Outcomes With BMS-986353, a CD19-directed Chimeric Antigen Receptor T Cell Therapy in Severe Refractory Idiopathic Inflammatory Myopathies: Safety and Efficacy Findings From the Ongoing Phase 1 Trial
Rohit Aggarwal¹, David Korman², Margrit Wiesendanger³, Vikas Majithia⁴, Ellen De Langhe⁵, Marc Schmalzing⁶, Melissa Griffith⁷, Philipp Koehler⁸, Joanna Schiller⁸, Dimitrios Mougiakakos⁹, Mohamad Cherry¹⁰, Richard Nash¹¹, Jacques Azzi¹², Ernesto Ayala⁴, Peter Vandenberghe⁵, Max Topp⁶, Jonathan Gutman⁷, Eugen Feist¹³, Alisha Desai¹⁴, Alexis Melton¹⁴, Alice Wozniak¹⁴, San-San Ou¹⁴, Melissa Harnois¹⁴, Jerill Thorpe¹⁴, Praneeth Jarugula¹⁴, Takafumi Ide¹⁴, Ashley Koegel¹⁴ and Neil Kramer¹⁵, ¹University of Pittsburgh, Pittsburgh, Pennsylvania, ²Mountain Rheumatology, HCA HealthONE, Denver, Colorado, ³Icahn School of Medicine at Mount Sinai, New York, New York, ⁴Mayo Clinic Hospital, Jacksonville, Florida, ⁵University Hospitals Leuven, Leuven, Belgium, ⁶University Hospital Würzburg, Würzburg, Germany, ⁷University of Colorado Anschutz Medical Campus, Aurora, Colorado, ⁸University of Cologne, Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, Division of Clinical Immunology and Center for Integrated Oncology (CIO) Aachen Bonn Cologne Duesseldorf, Cologne, Germany, ⁹University Hospital Magdeburg, Magdeburg, Germany, ¹⁰Atlantic Health System, Morristown, New Jersey, ¹¹HealthOne Cares and Colorado Blood Cancer Institute, Denver, Colorado, ¹²Icahn School of Medicine at Mount Sinai Hospital, New York, New York, ¹³Helios Vogelsang-Gommern Specialist Clinic, Gommern, Germany, ¹⁴Bristol Myers Squibb, Princeton, New Jersey, ¹⁵Overlook Medical Center and Atlantic Medical Group, Atlantic Health System, Morristown, New Jersey
Background/Purpose: Idiopathic inflammatory myopathies (IIMs) are systemic autoimmune diseases affecting muscles, skin, lungs, joints, and several other organs; many patients are refractory to available therapy,…
Abstract Number: 2071 • ACR Convergence 2025
Impact of Diagnostic Delay on Disease Activity and Cumulative Damage in Patients with Idiopathic Inflammatory Myopathies in a Third-level Hospital in Mexico
valeria cantu¹, Rebeca L. Polina-Lugo¹, Emmanuel Dominguez-Chapa², Ana Cecilia Bardan Inchaustegui³, Fernanda M. Garcia-Carrillo⁴, Daniela A. Mejia-Rodriguez⁴, Ericka S. Reyna-Hernandez⁴, Rosa Arvizu-Rivera⁵, Jesus Alberto Cardenas-de la Garza⁶ and Miguel Villarreal-Alarcón⁷, ¹Division of Rheumatology, University Hospital "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ²Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ³Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ⁴Rheumatology Service, Hospital Universitario “Dr. Jose Eleuterio Gonzalez”, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico, ⁵Hospital Universitario "Dr. José Eleuterio Gonzalez", Escobedo, Nuevo León, Mexico, ⁶Rheumatology Service, University Hospital “Dr. José Eleuterio González”, Universidad Autónoma de Nuevo León, Monterrey, México, Monterrey, Mexico, ⁷Hospital Universitario UANL, Monterrey, Nuevo León, Mexico
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a rare and heterogeneous group of autoimmune diseases marked by inflammation of muscle tissue and extramuscular manifestations. Their atypical…
Abstract Number: 1201 • ACR Convergence 2025
Prognostic Significance of 1-Year Pulmonary Function Changes in Myositis-Associated Interstitial Lung Disease
Shiri Keret¹, Silvia Martinez Laverde², Irada Choudhuri², Raisa Lomanto Silva³, Eugenia Gkiaouraki², Tanya Chandra², Nantakarn Pongtarakulpanit⁴, Shreya Sriram², Niladri Bhowmick², Vaidehi Kothari², Kaushik Sreerama Reddy², Eaman Alhassan⁵, Anushka Aggarwal⁶, Maha Almackenzie⁷, Daniel Sullivan², Sara Faghihi-Kashani⁸, Koichi Yamaguchi², Daniel Kass², Kevin Gibson², Dana Ascherman⁹, Siamak Moghadam-Kia⁵, Chester V. Oddis⁹ and Rohit Aggarwal¹⁰, ¹Bnai Zion Medical Center, Atlit, Israel, ²University of Pittsburgh Medical Center, Pittsburgh, ³Massachusetts General Hospital, Boston, MA, ⁴Mahidol University, University of Pittsburgh, Bangkok, Thailand, ⁵University of Pittsburgh Medical Center, Pittsburgh, PA, ⁶Indraprastha Apollo Hospital, New Delhi, India, ⁷Medical Cities of the Ministry of the Interior, Riyadh, Saudi Arabia, ⁸UCSF, Mountain View, CA, ⁹University of Pittsburgh, Pittsburgh, PA, ¹⁰University of Pittsburgh, Rheumatology and Clinical Immunology, Pittsburgh, United States of America, Pittsburgh, PA
Background/Purpose: Lung involvement is the most frequent and severe extramuscular complication of Idiopathic Inflammatory Myopathy (IIM). The utility of pulmonary function test (PFT) monitoring for…
Abstract Number: 0281 • ACR Convergence 2025
Anti-IL-6 Autoantibodies and IL-6 Signalling in Idiopathic Inflammatory Myopathies
Anja Srpcic¹, Manca Ogric¹, Sasa Cucnik¹, Sergej Pirkmajer², Katja Lakota¹ and Katja Perdan Pirkmajer¹, ¹University Medical Centre Ljubljana, Ljubljana, Slovenia, ²Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of systemic autoinflammatory diseases that affect muscle tissue, often leading to muscle atrophy, weakness and myalgia.…
Abstract Number: 2068 • ACR Convergence 2025
Comparing characteristics, diagnostics, and treatment in people with different idiopathic inflammatory myopathies using a large representative cohort
Michael George¹, Thomas Riley¹, Ellen Romich², Emily Holladay³, Tim Beukelman⁴, Shanette Daigle⁵, Amy Mudano⁵, Fenglong Xie⁶, Xiang Guo⁷, Nicole Kulisek⁸, Arne Yndestad⁹, Ashraf Chaudhary⁸ and Jeffrey Curtis¹⁰, ¹University of Pennsylvania, Philadelphia, PA, ²University of Pennsylvania, Media, PA, ³University of Alabama at Birmingham, Birmingham, AL, ⁴Foundation for Advancing Science Technology Education and Research, Hoover, AL, ⁵Foundation for Advancing Science, Technology, Education and Research (FASTER), Hoover, AL, ⁶The University of Alabama at Birmingham, Birmingham, AL, ⁷Pfizer, Inc, New York, NY, ⁸Pfizer, Inc, Collegeville, PA, ⁹Pfizer Inc, Oslo, Norway, Oslo, Norway, ¹⁰Foundation for Advancing Science, Technology, Education and Research, Birmingham, AL
Background/Purpose: Studies of idiopathic inflammatory myopathies (IIM) are often based on the analysis of single cohorts at academic centers. We aimed to identify potential gaps…
Abstract Number: 1199 • ACR Convergence 2025
Interstitial Lung Disease in Systemic Autoimmune Rheumatic Diseases (SARDs): Radiologic and Histologic Correlations
Darya S. Jalaledin¹, Aidan pye², Angela Chang², Navid Saleh², Saud AlHajeri³, Beatrice Daviault⁴, Arusa Shah⁵, Sabrina Hoa⁶, Océane Landon-Cardinal⁷, Alec Yu², Robert Levy⁸, Jennifer Wilson⁹, Charles Poirier⁴, James Choi², John Yee², Hyein Kim² and Kun Huang¹⁰, ¹Université de Montréal, Saint-Lambert, QC, Canada, ²University of British Columbia, VANCOUVER, BC, Canada, ³University of British Columbia, Vancouver, Canada, ⁴University of Montreal, Montreal, QC, Canada, ⁵University of Montreal, Montreal, BC, Canada, ⁶University of Montreal, Brossard, QC, Canada, ⁷Centre hospitalier de l'Université de Montréal, Montréal, QC, Canada, ⁸University of British Columbia, Deerfield, IL, ⁹UBC, Vancouver, BC, Canada, ¹⁰University of British Columbia, Vancouver, Surrey, BC, Canada
Background/Purpose: Systemic autoimmune rheumatic diseases (SARDs) are a major cause of interstitial lung disease (ILD), with high prevalence in inflammatory idiopathic myopathy (IIM), systemic sclerosis…
Abstract Number: 2067 • ACR Convergence 2025
Patterns of Comorbidity in Idiopathic Inflammatory Myopathies: A Cross-sectional Analysis of Disease Burden and Risk Factors
Ilke Coskun Benlidayi¹, Meghna Lama², Oladipo Kunle Afolayan², Meera Shah³, Manali Sarkar⁴, Tamar Rubinstein⁵, Aleksandra Opinc-Rosiak⁶, Rada Miskovic⁷, Marcin Milchert⁸, Dimitri Luz Felipe da Silva⁹, Samuel Katsuyuki Shinjo¹⁰, Elena Nikiphorou¹¹, Ioannis Parodis¹², Vincenzo Venerito¹³, Vikas Agarwal¹⁴ and Latika Gupta¹⁵, ¹Cukurova University, Adana, Turkey, ²The University of Texas Health Science Centre at Houston School of Public Health: Houston, Texas, Houston, ³Indraprastha Apollo Hospital, New Delhi, Mumbai, Maharashtra, India, ⁴Sir H. N. Reliance Foundation Hospital and Research Centre, Mumbai, Maharashtra, India., Mumbai, Maharashtra, India, ⁵Albert Einstein College of Medicine, White Plains, NY, ⁶Medical University of Lodz, Zeromskiego ¹¹³, ⁹⁰-⁵⁴⁹ Lodz, Poland., Lodz, Poland, ⁷University of Belgrade; Clinic of Allergy and Immunology, University Clinical Centre of Serbia, Belgrade, Serbia, ⁸Pomeranian Medical University in Szczecin, Szczecin, Poland, ⁹University Santo Amaro, São Paulo, Brazil, Sao Paulo, Brazil, ¹⁰Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, Sao Paulo, Brazil, ¹¹King's College London, London, United Kingdom, ¹²Karolinska Institutet and Karolinska University Hospital, Department of Medicine Solna, Division of Rheumatology, Stockholm, Sweden, ¹³Univeristy of Bari "Aldo Moro", Italy, Bari, Bari, Italy, ¹⁴Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India, ¹⁵School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham; Royal Wolverhampton NHS Trust; Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester; Francis Crick Institute, London, Birmingham, UK, United Kingdom
Background/Purpose: Comorbidities contribute to the disease burden in idiopathic inflammatory myopathies (IIMs). Understanding their distribution and predictors across IIM subtypes can guide tailored strategies. This…
Abstract Number: 1196 • ACR Convergence 2025
Prevalence of and Factors Associated with Chronic Opioid Use among Individuals with Inflammatory Myopathies
Anuya Natu¹, Haley Zimmerman², Kristin Wipfler³, Kaleb Michaud⁴, Yvonne Lee⁵ and Didem Saygin², ¹John H. Stroger, Jr. Hospital of Cook County, Chicago, IL, ²Rush University Medical Center, Chicago, IL, ³FORWARD, The National Databank for Rheumatic Diseases, Omaha, NE, ⁴University of Nebraska Medical Center, Omaha, NE, ⁵Northwestern University, Chicago, IL
Background/Purpose: Idiopathic inflammatory myopathies (IIM) can be associated with significant pain and functional impairment. While the use of opioids has been documented in other inflammatory…
Abstract Number: 2066 • ACR Convergence 2025
Psychosocial Factors Strongly Influence Subjective Well-being in Patients with Idiopathic Inflammatory Myopathies
Meera Shah¹, Emilia Naseva², Tsvetelina Velikova³, Tamar Rubinstein⁴, Manali Sarkar⁵, Lavanya Mangla⁶, Oliver Distler⁷, Ingrid de Groot⁸, Lisa Christ⁹, Carlo Vinicio Caballero Uribe¹⁰, Ai Lyn Tan¹¹, Abraham Edgar Gracia Ramos¹², Vincenzo Venerito¹³, Vikas Agarwal¹⁴ and Latika Gupta¹⁵, ¹Indraprastha Apollo Hospital, New Delhi, Mumbai, Maharashtra, India, ²Faculty of Public Health, Medical University of Sofia, ¹⁵ Acad. Ivan Evstratiev Geshov, ¹⁶⁰⁶ Sofia; Medical Faculty, Sofia University St. Kliment Ohridski, Sofia, Bulgaria, ³Medical Faculty, Sofia University St. Kliment Ohridski, Sofia, Bulgaria, ⁴Albert Einstein College of Medicine, White Plains, NY, ⁵Sir H. N. Reliance Foundation Hospital and Research Centre, Mumbai, Maharashtra, India., Mumbai, Maharashtra, India, ⁶Maulana Azad Medical College, ²-Bahadurshah Zafar Marg, New Delhi, New Delhi, India, ⁷Department of Rheumatology, University Hospital Zurich, University of Zurich, Switzerland, Zurich, Switzerland, ⁸The Myositis Association, Rotterdam, Netherlands, ⁹Department of Rheumatology and Immunology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland., Bern, Switzerland, ¹⁰Department of Medicine, Hospital Universidad del Norte, Barranquilla, Atlantico, Colombi, Barranquilla, Colombia, ¹¹NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals Trust, Leeds; Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, England, United Kingdom, ¹²Department of Internal Medicine, General Hospital, National Medical Center “La Raza”, Instituto Mexicano del Seguro Social, Av. Jacaranda S/N, Col. La Raza, Del. Azcapotzalco, C.P. ⁰²⁹⁹⁰ Mexico City, Mexico., Mexico City, Mexico, ¹³Univeristy of Bari "Aldo Moro", Italy, Bari, Bari, Italy, ¹⁴Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India, ¹⁵School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham; Royal Wolverhampton NHS Trust; Centre for Musculoskeletal Research, School of Biological Sciences, The University of Manchester, Manchester; Francis Crick Institute, London, Birmingham, UK, United Kingdom
Background/Purpose: Traditional clinical measures are well established in idiopathic inflammatory myopathies (IIM), yet exploration of subjective well-being (SWB) remains limited. SWB assessment facilitates holistic patient…
Abstract Number: 1193 • ACR Convergence 2025
Lung Transplant Outcomes in Patients with Myositis- and Systemic Sclerosis-Associated Interstitial Lung Disease Compared to Idiopathic Pulmonary Fibrosis: A Multicentric Retrospective Analysis
Angela Chang¹, Navid Saleh¹, Alec Yu¹, Darya S. Jalaledin², Sabrina Hoa³, Robert Levy⁴, Jennifer Wilson⁵, Charles Poirier⁶, John Yee¹, James Choi¹, Océane Landon-Cardinal⁷, Hyein Kim⁸ and Kun Huang⁹, ¹University of British Columbia, Vancouver, BC, Canada, ²Université de Montréal, Saint-Lambert, QC, Canada, ³University of Montreal, Brossard, QC, Canada, ⁴University of British Columbia, Deerfield, IL, ⁵UBC, Vancouver, BC, Canada, ⁶University of Montreal, Montreal, QC, Canada, ⁷Centre hospitalier de l'Université de Montréal, Montréal, QC, Canada, ⁸The University of British Columbia, Vancouver, BC, Canada, ⁹University of British Columbia, Vancouver, Surrey, BC, Canada
Background/Purpose: Interstitial lung disease (ILD) is a frequent complication of idiopathic inflammatory myositis (IIM) and systemic sclerosis (SSc), ranging from subclinical ILD to rapidly progressive…
Abstract Number: 2064 • ACR Convergence 2025
Kinematics Underlying IBM-induced Dysphagia
Kevin Renz Ambrocio¹, Vaidehi Kothari¹, Rohit Aggarwal², Anna Miles³, James L. Coyle¹, Eaman Alhassan⁴, Sandra Stinnett¹, David Lacomis¹, Lea Sayce¹ and Kendrea (Focht) Garand¹, ¹University of Pittsburgh, Pittsburgh, PA, ²University of Pittsburgh, Rheumatology and Clinical Immunology, Pittsburgh, United States of America, Pittsburgh, PA, ³The University of Auckland, Auckland, New Zealand, ⁴University of Pittsburgh Medical Center, Pittsburgh, PA
Background/Purpose: Dysphagia remains a key contributor to mortality in IBM due to its connection with aspiration pneumonia and malnutrition (Shelly et al., 2021). Compared to…
Abstract Number: 1192 • ACR Convergence 2025
Idiopathic Inflammatory Myopathies: A Prospective Phase 4 Controlled Trial Of Recombinant Herpes Zoster Vaccine
Sandra G Pasoto¹, Thais B Gorayeb², Ana Paula Luppino-Assad³, Nadia E Aikawa⁴, Ana C Medeiros-Ribeiro¹, Leonard V Kupa⁵, Bruno S Borges⁶, Samuel K Shinjo⁷, Fernando H De Souza², Renata Miossi², Eloisa Bonfa⁸ and Clovis Artur Silva⁹, ¹Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, Sao Paulo, Brazil, ²Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, São Paulo, ³Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, SAO PAULO, Brazil, ⁴Pediatric Rheumatology Unit, Instituto da Criança e do Adolescente, Hospital das Clinicas HCFMUSP, Sao Paulo, Brazil., Sao Paulo, Sao Paulo, Brazil, ⁵Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, São Paulo, Sao Paulo, Brazil, ⁶Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, ⁷Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, SÃO PAULO, Brazil, ⁸Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil, São Paulo, Brazil, ⁹University of São Paulo, São Paulo, São Paulo, Brazil
Background/Purpose: Although herpes zoster vaccination has been evaluated in immunocompromised populations, studies assessing vaccine immunogenicity and safety in idiopathic inflammatory myopathies (IIM) are restricted to…
Abstract Number: 2060 • ACR Convergence 2025
Treatment Patterns And Drug Use In Idiopathic Inflammatory Myopathies. Description Of The First Year After Diagnosis In A Swedish Myositis Cohort.
Irene Peralta-García¹, Naz Haque², Dag Leonard³, Anna Glasin⁴, Silva Puksic⁵, Balsam Hanna⁶, My Axelhed⁷, Theodoros Lappas⁵, Farbicio Espinosa Ortega¹, Karin Lodin¹, NIls Eckerdal², Helene Alexanderson⁸, Elizabeth Hsia⁹, Federico Zazzetti¹⁰, Ingrid Lundberg¹¹ and Marie Holmqvist¹, ¹Karolinska Institutet, Clinical Epidemiology Division, Department of Medicine Solna. Karolinska University Hospital, Medical Unit of Gastroenterology, Dermatology, Rheumatology. Theme Inflammation and Ageing, Stockholm, Sweden, ²Karolinska Institutet, Clinical Epidemiology Division, Department of Medicine Solna, Stockholm, Sweden, ³Department of Medical Sciences, Uppsala University, Uppsala, Sweden, ⁴Rheumatology Department, Linköping Hospital, LInköping, Sweden, ⁵Rheumatology Department, Örebro University Hospital, Örebro, Sweden, ⁶Rheumatology Department, Sahlgrenska University Hospital, Gothenburg, Sweden, ⁷Rheumatology Department, Västmanlands Hospital, Västerås, Sweden, ⁸Karolinska University Hospital, Stockholm, Sweden, ⁹Johnson & Johnson, Spring House, PA, ¹⁰Johnson & Johnson, Horsham, PA, USA, Ambler, PA, ¹¹Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Due to the rarity and heterogeneity of idiopathic inflammatory myopathies (IIM), we lack robust randomized trials to guide treatment decisions. Most of current practice…
Abstract Number: 1037 • ACR Convergence 2025
Risk Factor Identification and Dynamic Individualized Prediction of Muscle Involvement in Systemic Sclerosis
Zixing Liu¹, Adrianne Woods², Julie Paik², Laura Hummers², Scott Zeger¹, Ami Shah² and Ji Soo Kim³, ¹Johns Hopkins Biostatistics, Baltimore, MD, ²Johns Hopkins Rheumatology, Baltimore, MD, ³Johns Hopkins, Baltimore, MD
Background/Purpose: Myopathy in SSc significantly increases disability, reduces quality of life, and elevates mortality risk, yet remains understudied. Most identified risk factors derive from cross-sectional…
Abstract Number: 2058 • ACR Convergence 2025
Organ-specific disease activity and serological patterns in idiopathic inflammatory myopathies: A descriptive study in a Hispanic cohort
valeria cantu¹, Emmanuel Dominguez-Chapa², Rebeca L. Polina-Lugo¹, Ana Cecilia Bardan Inchaustegui³, fernanda m. garcia-Carrillo⁴, Ericka S. Reyna-Hernandez⁵, Daniela A. Mejia-Rodriguez⁵, Rosa Arvizu-Rivera⁶, Jesus Alberto Cardenas-de la Garza⁷, Miguel Villarreal-Alarcón⁸ and Dionicio A. Galarza-Delgado⁹, ¹Division of Rheumatology, University Hospital "Dr. Jose Eleuterio Gonzalez", Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ²Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ³Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, Mexico, ⁴Hospital Universitario "Dr. José Eleuterio González" UANL, Monterrey, Nuevo Leon, Mexico, ⁵Rheumatology Service, Hospital Universitario “Dr. Jose Eleuterio Gonzalez”, Universidad Autonoma de Nuevo Leon, Monterrey, Nuevo Leon, Mexico, ⁶Hospital Universitario "Dr. José Eleuterio Gonzalez", Escobedo, Nuevo León, Mexico, ⁷Rheumatology Service, University Hospital “Dr. José Eleuterio González”, Universidad Autónoma de Nuevo León, Monterrey, México, Monterrey, Mexico, ⁸Hospital Universitario UANL, Monterrey, Nuevo León, Mexico, ⁹Rheumatology Service, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are rare diseases that involve chronic muscle inflammation, weakness, and pain. Autoantibodies in IIM play a central role in disease…

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